Joint Transceiver Design for Amplify-and-Forward Multiuser MIMO Relay Communication Systems with Source-Destination Links

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Provided by: Journal of Communications
Topic: Mobility
Format: PDF
In this paper, the authors generalize the iterative algorithms to amplify-and-forward multiuser Multiple-Input Multiple-Output (MIMO) relay communication systems with the source-destination links. Compared with the conventional algorithms, where the source-destination links are ignored, the evolved tri-step method and bi-step method are derived for the new system model with the source-destination links for more spatial diversity gain. From the theoretical derivation of the Minimum Mean-Squared Error (MMSE) of the signal waveform estimation at the destination node, they show that the existence of the source-destination links bring benefits no matter how weak they are.
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